Rustler Formation

Operator-reported tops from 26,553 wells across 32 counties, median tops running 385–2,430 ft by county.

Depth by County

County	Wells	Median Top	Typical Range	CSV
Midland	3,306	1,688 ft	1,490–1,836	↓
Ward	3,043	950 ft	747–1,763	↓
Crane	2,038	556 ft	361–1,104	↓
Ector	1,967	1,520 ft	1,010–1,813	↓
Andrews	1,957	1,728 ft	1,409–2,019	↓
Howard	1,765	1,195 ft	904–1,426	↓
Yoakum	1,727	2,040 ft	1,772–2,274	↓
Yoakum	1,532	2,345 ft	2,150–2,569	↓
Winkler	1,517	950 ft	772–1,149	↓
Hockley	1,382	2,095 ft	1,968–2,250	↓
Pecos	958	1,300 ft	542–1,975	↓
Glasscock	816	1,366 ft	1,116–1,476	↓
Upton	634	1,018 ft	940–1,500	↓
Borden	516	1,168 ft	500–1,429	↓
Reeves	506	999 ft	764–1,857	↓
Terry	472	2,430 ft	2,298–2,540	↓
Martin	404	1,609 ft	1,375–2,018	↓
Cochran	374	2,255 ft	2,084–2,340	↓
Culberson	365	385 ft	186–586	↓
Dawson	235	2,118 ft	1,602–2,210	↓
Loving	232	607 ft	488–992	↓
Reagan	153	1,188 ft	964–1,411	↓
Scurry	148	566 ft	486–646	↓
Crosby	109	1,180 ft	999–1,326	↓
Hale	108	1,531 ft	1,501–1,580	↓
Lubbock	80	1,607 ft	1,444–1,873	↓
Garza	59	924 ft	615–1,380	↓
Crockett	55	1,125 ft	524–1,222	↓
Lamb	36	1,627 ft	1,600–1,778	↓
Mitchell	25	734 ft	542–798	↓
Irion	22	777 ft	696–1,009	↓
Lynn	12	1,718 ft	1,466–1,973	↓

Counties with fewer than 5 wells omitted. Depths are measured depth as filed; typical range is the 10th–90th percentile of reported tops — raw filings contain occasional typo depths, so extremes are not shown.